This chess book is in German algebraic notation, but contains languageless informant type notes, so no knowledge of German is necessary. Published in 1987. It contains 33 deeply annotated games and has 84 pages. If you play 1 d4, this is the most potent variation against blacks, Benoni defense. It is also called the flick knife or Taimanov variation. If you play black, you need this book too learn how to defend against white’s most dangerous choice. There is minor wear to the cover corners, and a pencilled notation by the original seller on the title page.